The distribution of tips given by customers who buy only a cup of coffee is bimodal with a mean of $0.29 and a standard deviation of $0.116. The distribution of tips given by customers who buy only a salad is approximately Normally distributed with a mean of $2.89 and a standard deviation of $1.18. If a random sample of 35 tips from customers who buy only a cup of coffee is selected and a random sample of 20 customers who buy only a salad is selected, what is the probability of a sample mean being at least $2.50 more for customers who buy only a salad than for those who buy only a cup of coffee?

Answer:

area=l²

l=8

area=8²

=8×8

=64

The piece of glass's area is is 64 square cm.

Diagonals of a Square A square has two diagonals, they are equal in length and intersect in the middle.

The length of square is given by;

[tex]\rm Length =a^2[/tex]

Each side of a square piece of glass is 8 centimeters long.

The piece of glass's area is;

[tex]\rm Glass \ area=a^2\\\\ Glass \ area=8^2\\\\ Glass \ area=64[/tex]

Hence, the piece of glass's area is is 64 square cm.

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Answer:

Width of the rectangle = 7 meters

Length of the rectangle = 12 meters

Step-by-step explanation:

Perimeter of a rectangle = 2(length + width)

Perimeter of the rectangle = 38 meters

Width of the rectangle = w

Length of the rectangle = w + 5

Perimeter of a rectangle = 2(length + width)

38 = 2{(w + 5) + w}

38 = 2(w + 5 + w)

38 = 2(2w + 5)

38 = 4w + 10

38 - 10 = 4w

28 = 4w

w = 28/4

w = 7 meters

Width of the rectangle = w

= 7 meters

Length of the rectangle = w + 5

= 7 + 5

= 12 meters

Answer:

Sorry I don’t know

Step-by-step explanation:

a3=25

a8=-10

first, a3=25 will be 25= a + (3-1)×d that is the formula of the Arithimetic function genrally→ an=a (which is the first term..that we wanted in this case) + n-1 (n is the order of wanted term..we already has the term which is 3) × d (the common ration).

So, 25=a+(3-1)×d

25=a+2d

25-2d=a   rearrange

a= 25-2d

We will take this equation and subsitute it in the other equation which is -10=a+ (8-1)×d

so it will be -10=25-2d+(8-1)×d

-10= 25-2d+7d   sum the d

-10= 25+5d

-10-25= 5d

-35=5d

-35/5=d

-7= d

Now that we have the d we can go back to the equation of a= 25-2d and know the value of a

a= 25-2×-7

a1=39

d=-7

Answer:

El resultado eres: [tex]R(x) + S(x) = -6x^2 - 2x - 2[/tex]

Step-by-step explanation:

Se dan las siguientes funciones

[tex]R(x) = -5x^2 + x - 2[/tex]

[tex]S(x) = -x^2 - 3x[/tex]

Cuál es el resultado de R(x) + S(x) ?​

Se soman los fatores en comun. Entonces:

[tex]R(x) + S(x) = -5x^2 + x - 2 + (-x^2 - 3x) = -5x^2 + x - 2 - x^2 - 3x = -5x^2 - x^2 + x - 3x - 2 = -6x^2 - 2x - 2[/tex]

El resultado eres: [tex]R(x) + S(x) = -6x^2 - 2x - 2[/tex]

Answer:

B on edge

Step-by-step explanation:

just got it wrong

Step-by-step explanation:

Sn=n/2{2a+(n-1)d}

=10(4+95)

=10(99)

=990

Answer:

A maximum of 306

Step-by-step explanation:

You can estimate that since each bus had less than 52 students, that 51 were on each bus. 51 times 6=306

Answer:

-26 -2x

Step-by-step explanation:

-8+6(-x-3)+4x​

Distribute

-8 -6x -18 +4x

Combine like terms

-8-18  -6x+4x

-26 -2x

Answer:

x- intercept(s): (−13,0)

Step-by-step explanation:

Answer:

a) Yes

Step-by-step explanation:

Because, 3+7=10

Answer: yes

Explanation: In this problem, to determine whether c = 3

is a solution to the equation, we substitute 3 in for c.

So we have (3) + 7 = 10.

Simplifying the left side of the equation, (3) + 7 is 10.

So we have 10 = 10 which is a true statement so our answer is yes.

Answer:

[tex]H_{0} = 0.5[/tex]

[tex]H_{a} > 0.5[/tex]

Option b

Step-by-step explanation:

Researchers conducted a study to determine whether the majority of community college students plan to vote in the next presidential election.

The null hypothesis is always an equalityu related to the expected, or tested value. In this question, the tested value is half of the students, a proportion of 0.5, that is: [tex]H_{0} = 0.5[/tex]

The alternate hypothesis is related to the test we are taking. In this question, we are testing if the majority of the students plan to vote, that is, if the proportion of the students that plan to vote is higher than 0.5. So [tex]H_{a} > 0.5[/tex]

So the correct answer is given by option B.

Can you show a picture of the table?

Answer:

theres no pic but im am 100% sure its 720

Step-by-step explanation

multiply  60 x 12 = 720 if  im wrong its not my fault there is no pic

Answer:

Your answer is the 4th one , 7xpower2 - 8 x - 10

Answer:

5

Step-by-step explanation:

5x -6 = 2x +9

5x -2x = 9 +6

3x  = 15

x = 5

Answer:

yeah its a right triangle

Step-by-step explanation:

Answer:

274

Step-by-step explanation:

Hey There!

So if you didnt know the median is the middle number ( in value) of the set

So first we would like to arrange the numbers in order from least to greatest

187 , 199 , 211 , 250 , 298 , 331 , 347 , 362

Then we take the middle number(s)

if there is just one then that is the answer but if there is two than we add them together and divide that by 2

In this case there are two which would be 250 and 298

So we add them together

250+298=548

Then we just divide that by 2

[tex]\frac{548}{2} =274[/tex]

Therefore the median is 274

hope this helps :)

Step-by-step explanation:

l hope this answer is helpful to you

Answer:

it is 15,000

Step-by-step explanation:

15,000 because there is 1,000 milliliters in one liters and 15 liters = 15,000 milliliters

Answer:

Factor.

Step-by-step explanation:

In Mathematics, the quadratic formula is used for determining the two factors (roots) of any quadratic equation.

The standard form of a quadratic equation is ax² + bx + c = 0

Mathematically, the quadratic equation is given by the formula;

[tex] x = \frac {-b \; \pm \sqrt {b^{2} - 4ac}}{2a} [/tex]

Hence, the quadratic formula allows us to find factor solutions to any quadratic equation.

Answer:

312 ft³

Step-by-step explanation:

4x4x6=96

12x6x3=216

96+216=312

Answer: The slope = 5.

Step-by-step explanation:

The equation of a line in the slope -intercept form is given by :-

[tex]y=mx+c[/tex]

,where  m= slope , c= y-intercept.

The slope of a line represents the rate of change of y with respect to x.

Given: Equation of line : Y= 5x+12

Here Slope (m)=5

Hence, the slope = 5.

Hi!

[tex]\spadesuit[/tex] We're given an equation in slope-intercept form:

                            [tex]\clubsuit~~~\Large\boldsymbol{y=mx+b} ~~~\clubsuit[/tex]

Where:

[tex]\diamondsuit~~~\large\boldsymbol{m- > slope}[/tex]

[tex]\diamondsuit~~\large\boldsymbol{b- > y-intercept}[/tex]

Notes:

Therefore,

[tex]\stackrel{\heartsuit}{\boxed{\boxed{\textsc{Answers:}\begin{cases}\bold{Slope:5}\\\bold{12}\end{cases}}}}[/tex]

I hope that the explanation helped you out! :D

If you need any explanation or clarification, please let me know!

Answer:

lol

Step-by-step explanation:

Answer:

Arjan should look for other cards that add up to $$94%

Step-by-step explanation:

I don't know it but I guess this one, let me know if it help

Answer:

2. = 24

3. = 6

4. = 30

5. = 15

6. = 8

7. = 40

8. = 14

9. = 60

10. = 9

11. = 40

Explanation is in the file

tinyurl.com/wtjfavyw

Answer:

52

Step-by-step explanation:

8+5=13

13x8=104

104/2=52 (divided)

Answer:

52

Step-by-step explanation:

I took the test

Answer:

[tex]VYX=84.3in[/tex]

Step-by-step explanation:

Given

[tex]YV = 28in[/tex]

[tex]\angle WZX = 15^\circ[/tex]

See attachment

Required

Determine the length of [tex]VYX[/tex]

First, calculate the major angle VZX

[tex]\theta = \angle VZX = 360 - \angle WZX[/tex]

[tex]\theta = \angle VZX = 360 - 15[/tex]

[tex]\theta = \angle VZX = 345[/tex]

[tex]\theta = 345[/tex]

The length of arc VYX, is:

[tex]L=\frac{\theta}{360} * 2\pi r[/tex]

Where

[tex]r = \frac{1}{2} * Diameter[/tex]

[tex]r = \frac{1}{2} * YV[/tex]

[tex]r = \frac{1}{2} * 28[/tex]

[tex]r = 14[/tex]

So:

[tex]L=\frac{\theta}{360} * 2\pi r[/tex]

[tex]L=\frac{345}{360} * 2 * \frac{22}{7} *14[/tex]

[tex]L=\frac{345}{360} * 2 * 22 *2[/tex]

[tex]L=\frac{345* 2 * 22 *2}{360}[/tex]

[tex]L=\frac{30360}{360}[/tex]

[tex]L=84.3in[/tex]

Hence, the length of VYX is:

[tex]VYX=84.3in[/tex]

Answer:

(2x-3)^2

i hope its correct...

Step-by-step explanation:

Answer:

2x-3

Step-by-step explanation:

The length of the ladder is [tex]x = \sqrt{100} =10 feet[/tex].

To find out the length of the ladder leaning against the building given the following conditions; bottom of the ladder is 6 feet from the building, and the top of the ladder reaches the wall at a height of 8 feet, the Pythagorean theorem can be utilized.

Therefore the length of the ladder is approximately 10 feet.

The Pythagorean theorem states that for a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

This can be expressed as:

[tex]c^2=a^2+b^2[/tex]

where c is the hypotenuse (the longest side of the triangle)

a and b are the other two sides

Given, the distance from the bottom of the ladder to the wall is 6 feet and the height from the ground to the top of the ladder is 8 feet.

Let the length of the ladder be x

According to the Pythagorean theorem:

[tex]x^2 = 6^2 + 8^2 x^2[/tex]

[tex]x^2 = 36 + 64x^2[/tex]

[tex]x^2 = 100[/tex]

Therefore the length of the ladder is [tex]x = \sqrt{100}= 10 feet[/tex].

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Answer:

a very weak relationship between cost and volume

Step-by-step explanation:

The R factor is used to access the strength of the relationship between a dependent and independent variable. The R factor ranges between - 1 and 1. With negative values depicting a negative linear relationship and positive values meaning a positive relationship. The closer the R factor is to - 1 or + 1, the greater the strength, a value of 0 means, no correlation exists.

Hence, a R factor of 0.15 depicts a positive but very weak relationship between cost and volume as the R value is close to 0.